In the technological development of the conference system, it has unknowingly experienced three generations of all-analog technology, analog audio transmission + digital control technology, and all-digital technology (digital audio transmission + digital control technology). The system has the characteristics of excellent sound quality, powerful functions and high reliability, and is the mainstream product in the conference system market at present.
In recent years, computer technology, network technology, wireless transmission technology, etc. have developed rapidly. Applying these advanced technologies to the conference system will make the conference system more powerful, superior in performance, and more user-friendly in operation.
Today, wireless, network, and paperless multimedia have become the main development directions of conference systems, among which paperless conference systems are expected to become the representative products of the fourth generation of conference systems.
The wireless conference system has the advantages of no wiring, adaptable to real-time changes in the layout of the venue, no need to destroy the original decoration of the venue, convenient system maintenance, no need to worry about wire aging, and easy storage. Therefore, it is very popular in some high-end conference venues, large conference centers and administrative centers.
Wireless conference systems mainly include radio frequency wireless conference systems and infrared wireless conference systems.
Most of the radio frequency wireless conference systems are based on relatively mature radio frequency technology (2.4GHz, Wi-Fi), which is easy to install and has a large transmission distance (up to 30 meters). It is also not advisable to install multiple sets of radio frequency wireless conference systems in the building. In addition, the radio frequency has the characteristic of passing through the wall, which cannot guarantee the privacy of the meeting.
The infrared wireless conference system uses infrared rays with a wavelength of 830~950nm (3.16~3.61x1014Hz) as the transmission medium. Infrared rays have the transmission characteristics of visible light and cannot penetrate opaque objects, so the privacy of the meeting is well guaranteed. Moreover, the infrared system is free from radio interference, and there is no interference between adjacent conference rooms, which is very suitable for conference venue applications.
The main shortcomings of the infrared wireless conference system are: the signal coverage of a single infrared transceiver is not large enough (the coverage radius is about 10 meters, and the signal coverage can be increased by connecting multiple transceivers), the number of infrared transceivers installed in large venues and location need to be calculated according to the physical environment of the site.
In the conference system, networking is mainly reflected in the following aspects: In a large conference center with multiple conference halls, the interaction and sharing of information and equipment can be realized, which reduces the investment in system construction and greatly improves management efficiency. The conference system is networked with various servers (such as file servers, video servers, etc.), which can realize the sharing of files, multimedia information and external resources (this is applied in the paperless multimedia conference system); conference affairs disclosure, webcasting, etc.
Multi-room (meeting room) management system is a software that realizes centralized management of multi-room through Ethernet. The number of rooms that can be managed is determined by the number of available IP IDs and IP addresses. It is suitable for government agencies, enterprises and education and teaching fields. In the system, each room has a dedicated hardware device and a corresponding network central control system. The functions that can be realized are: centralized monitoring of each room, including: online status, system power, lamp life, hardware failure and user-defined event attributes; administrators schedule events for room reservations, such as: controlling the room to turn on lights, projection equipment, etc. at a specified time.
The "Paperless Conference" was proposed by the United Nations Non-Governmental Organizations Committee, which adopts an all-electronic mode to operate conference management to reduce paper consumption and improve conference efficiency.
On January 1, 2010, the United Nations fully implemented "paperless" in the use and management of conference documents. At the same time, modern high-level conferences are no longer just voice-based audio conferences, but require a large amount of multimedia information interaction, such as conference materials, computer files, various video information, and web browsing.
In general, the paperless multimedia conference system introduces paperless conferences, video services, conference services, etc. into the conference system, and pushes the conference system technology to a new stage.